2120453545 has 8 divisors (see below), whose sum is σ = 2908050624. Its totient is φ = 1454025264.

The previous prime is 2120453527. The next prime is 2120453549. The reversal of 2120453545 is 5453540212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120453545 - 2¹⁷ = 2120322473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120453549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30292159 + ... + 30292228.

It is an arithmetic number, because the mean of its divisors is an integer number (363506328).

Almost surely, 2^2120453545 is an apocalyptic number.

It is an amenable number.

2120453545 is a deficient number, since it is larger than the sum of its proper divisors (787597079).

2120453545 is an equidigital number, since it uses as much as digits as its factorization.

2120453545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60584399.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2120453545 is about 46048.3826534657. The cubic root of 2120453545 is about 1284.7232609705.

Adding to 2120453545 its reverse (5453540212), we get a palindrome (7573993757).

The spelling of 2120453545 in words is "two billion, one hundred twenty million, four hundred fifty-three thousand, five hundred forty-five".